[migration] make this index creation conditional

2020-12-12 16:46:53 -08:00 · 2020-12-12 16:46:53 -08:00 · f0d4e89279
parent 532bac229a
commit f0d4e89279
1 changed files with 3 additions and 1 deletions
--- a/db/migrate/20200806162649_add_index_to_statuses_reply.rb
+++ b/db/migrate/20200806162649_add_index_to_statuses_reply.rb
@ -2,6 +2,8 @@ class AddIndexToStatusesReply < ActiveRecord::Migration[5.2]
  disable_ddl_transaction!

  def change
-    add_index :statuses, :reply, algorithm: :concurrently
+    if !index_exists?(:statuses, :reply)
+      add_index :statuses, :reply, algorithm: :concurrently
+    end
  end
 end